Since the introduction of the Hermitian adjacency matrix for digraphs, interest in so-called
complex unit gain graphs has surged. In this work, we consider gain graphs whose spectra …

Let Γ be an embeddable non-degenerate polar space of finite rank n≥ 2. Assuming that Γ
admits the universal embedding (which is true for all embeddable polar spaces except grids …

New constructions of regular antipodal covers (in the sense of Godsil-Hensel) of complete
graphs Kn are presented. The main source of these constructions are skew generalized …

In this paper we consider some finite generalized polygons, defined over a field with
characteristic 2, which admit an embedding in a projective or affine space over a field with …

Diagram Geometry Page 1 Francis Buekenhout • Arjeh M. Cohen Diagram Geometry
Related to Classical Groups and Buildings ^ Springer Page 2 Contents 1 Geometries 1 1.1 …

Preliminary note. In this paper, we try to tell a coherent story without interruptions due to
formal definitions. If not mentioned in the text, these will be placed in separate boxes usually …

A projective (n, d, w 1, w 2) q set (or a two-character set for short) is a set S of n points of PG
(d− 1, q) with the properties that the set generates PG (d− 1, q) and that every hyperplane …

An embedding of a point-line geometry\varGamma is usually defined as an injective
map** ε from the point-set of\varGamma to the set of points of a projective space such that …

Polarized and homogeneous embeddings of dual polar spaces Page 1 J Algebr Comb (2009)
30: 381–399 DOI 10.1007/s10801-008-0166-8 Polarized and homogeneous embeddings of …

Let Γ be a non-degenerate polar space of rank n≥ 3 where all of its lines have at least three
points. We prove that, if Γ admits a lax embedding e: Γ→ Σ in a projective space Σ defined …